WO2014104393A8 - Procédé de fabrication d'une tôle d'acier électromagnétique à grains orientés - Google Patents

Procédé de fabrication d'une tôle d'acier électromagnétique à grains orientés Download PDF

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WO2014104393A8
WO2014104393A8 PCT/JP2013/085321 JP2013085321W WO2014104393A8 WO 2014104393 A8 WO2014104393 A8 WO 2014104393A8 JP 2013085321 W JP2013085321 W JP 2013085321W WO 2014104393 A8 WO2014104393 A8 WO 2014104393A8
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Prior art keywords
ppm
grain
mass
steel slab
oriented electrical
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PCT/JP2013/085321
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English (en)
Japanese (ja)
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WO2014104393A1 (fr
Inventor
早川　康之
之啓 新垣
山口　広
松田　広志
有衣子 脇阪
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Ｊｆｅスチール株式会社
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Application filed by Ｊｆｅスチール株式会社 filed Critical Ｊｆｅスチール株式会社
Priority to RU2015131084A priority Critical patent/RU2608258C1/ru
Priority to US14/650,387 priority patent/US9708682B2/en
Priority to JP2014543712A priority patent/JP5692479B2/ja
Priority to EP13869216.5A priority patent/EP2940160B1/fr
Priority to KR1020157019245A priority patent/KR101651797B1/ko
Priority to CN201380068330.8A priority patent/CN104884644B/zh
Publication of WO2014104393A1 publication Critical patent/WO2014104393A1/fr
Publication of WO2014104393A8 publication Critical patent/WO2014104393A8/fr

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  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Power Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Soft Magnetic Materials (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une tôle d'acier électromagnétique à grains orientés utilisant, comme matière première à cette fin, une plaque en acier ayant une composition qui contient, en termes de % en masse ou de ppm en masse, jusqu'à 0,08% C, 2,0-4,5 Si et jusqu'à 0,5% Mn, a des teneurs en S, Se et O réduites à moins de 50 ppm chacune et une teneur en Al sol réduite à moins de 100 ppm, et a une teneur régulée à la plage [Al sol]x[14/27] ppm≤N≤80 ppm, le restant comprenant Fe et des impuretés inévitables, le procédé comprenant le laminage à froid de la plaque d'acier, après quoi on soumet la plaque d'acier, avant initiation de la recristallisation secondaire/recuit, à un traitement de nitruration par lequel la teneur en azote est régulée à 50-1000 ppm en masse, en incorporant un sulfure et/ou un sulfate dans un séparateur de recuit dans une quantité totale de 0,2-15% en masse, et en effectuant la recristallisation secondaire/recuit de sorte que la plaque d'acier, durant le chauffage, est maintenue pendant 5 heures ou plus dans la plage de température de 300-800°C, en précipitant de cette façon du nitrure de silicium (Si3N4) et du MnS et en utilisant le nitrure de silicium et le MnS en combinaison comme pouvoir d'inhibition de la croissance des grains normaux. Ainsi, les irrégularités de la propriété magnétique sont grandement réduites et on produit de manière stable et industrielle une tôle d'acier électromagnétique à grains orientés ayant des caractéristiques satisfaisantes.
PCT/JP2013/085321 2012-12-28 2013-12-25 Procédé de fabrication d'une tôle d'acier électromagnétique à grains orientés WO2014104393A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
RU2015131084A RU2608258C1 (ru) 2012-12-28 2013-12-25 Способ производства текстурированного листа из электротехнической стали
US14/650,387 US9708682B2 (en) 2012-12-28 2013-12-25 Production method for grain-oriented electrical steel sheet
JP2014543712A JP5692479B2 (ja) 2012-12-28 2013-12-25 方向性電磁鋼板の製造方法
EP13869216.5A EP2940160B1 (fr) 2012-12-28 2013-12-25 Methode de production d'une tôile d'acier électromagnétique à grains orientés
KR1020157019245A KR101651797B1 (ko) 2012-12-28 2013-12-25 방향성 전기 강판의 제조 방법
CN201380068330.8A CN104884644B (zh) 2012-12-28 2013-12-25 方向性电磁钢板的制造方法

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JP2012-288612 2012-12-28
JP2012288612 2012-12-28

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JP (1) JP5692479B2 (fr)
KR (1) KR101651797B1 (fr)
CN (1) CN104884644B (fr)
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WO (1) WO2014104393A1 (fr)

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EP2940160A1 (fr) 2015-11-04
KR101651797B1 (ko) 2016-08-26
JPWO2014104393A1 (ja) 2017-01-19
JP5692479B2 (ja) 2015-04-01
CN104884644A (zh) 2015-09-02
WO2014104393A1 (fr) 2014-07-03
US9708682B2 (en) 2017-07-18
EP2940160B1 (fr) 2017-02-01
KR20150095911A (ko) 2015-08-21
US20150299819A1 (en) 2015-10-22
RU2608258C1 (ru) 2017-01-17
CN104884644B (zh) 2017-03-15
EP2940160A4 (fr) 2016-04-06

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